Which of the following items may be reused following suitable sterilisation?

The aspirator is a piece of dental equipment designed to help remove fluids and debris from the oral cavity during procedures. It can be safely reused after undergoing proper sterilization processes. Sterilization is crucial to prevent cross-contamination and ensure patient safety. The aspirator can typically be cleaned and sterilized using methods such as autoclaving or other appropriate sterilization techniques, allowing it to be reused in subsequent procedures.

In contrast, items like barbed broaches and polishing brushes are typically classified as single-use or may not withstand the same level of sterilization processes. Matrix bands may also be found in single-use formats, or they may be made of materials that are difficult to sterilize effectively without degradation. Hence, while the aspirator is suitable for reuse following sterilization, the other items may either not be designed for multiple uses or may pose a risk if reused without proper sterilization.